<?php

function bp_core_signup_set_headers() {
	add_action( 'wp_head', 'bp_core_signup_register_headers' ) ;
	require_once( ABSPATH . WPINC . '/registration.php' );

	if( is_array( get_site_option( 'illegal_names' )) && $_GET[ 'new' ] != '' && in_array( $_GET[ 'new' ], get_site_option( 'illegal_names' ) ) == true ) {
		wp_redirect( "http://{$current_site->domain}{$current_site->path}" );
		die();
	}
}

function bp_core_signup_do_headers() {
	do_action("signup_header");
}
add_action( 'wp_head', 'bp_core_signup_do_headers' );

function bp_core_signup_register_headers() {
	echo "<meta name='robots' content='noindex,nofollow' />\n";
}

function bp_core_signup_show_blog_form( $blogname = '', $blog_title = '', $errors = '' ) {
	global $current_site;
	
	?>
	<h3><?php _e( 'Blog Details', 'buddypress' ) ?></h3>
	<p id="blog-details-help">
		<?php _e( "To register your first blog, just fill in the details below and your registration is complete.", 'buddypress' ) ?>
	</p>
	
	<div id="blog-details-fields">
		<?php
	
		// Blog name
		if ( 'no' == constant( "VHOST" ) )
			echo '<label for="blogname">' . __('Blog Name:', 'buddypress') . '</label>';
		else
			echo '<label for="blogname">' . __('Blog Domain:', 'buddypress') . '</label>';

		if ( $errmsg = $errors->get_error_message('blogname') ) { ?>
			<p class="error"><?php echo $errmsg ?></p>
		<?php }

		if ( 'no' == constant( "VHOST" ) ) {
			echo '<span class="prefix_address">' . $current_site->domain . $current_site->path . '</span><input name="blogname" type="text" id="blogname" value="'.$blogname.'" maxlength="50" /><br />';
		} else {
			echo '<input name="blogname" type="text" id="blogname" value="'.$blogname.'" maxlength="50" /><span class="suffix_address">.' . $current_site->domain . $current_site->path . '</span><br />';
		}
		
		if ( !is_user_logged_in() ) {
			echo '<p class="help-text">';
			print '(<strong>' . __( 'Your address will be ', 'buddypress'  );
			if( 'no' == constant( "VHOST" ) ) {
				print $current_site->domain . $current_site->path . __( 'blogname', 'buddypress'  );
			} else {
				print __( 'domain.', 'buddypress'  ) . $current_site->domain . $current_site->path;
			}
			echo '</strong>. ' . __( 'Must be at least 4 characters, letters and numbers only. It cannot be changed so choose carefully!)', 'buddypress'  ) . '</p>';
			echo '</p>';
		}

		// Blog Title
		?>
		<label for="blog_title"><?php _e( 'Blog Title:', 'buddypress' ) ?></label>	
		<?php if ( $errmsg = $errors->get_error_message('blog_title') ) { ?>
			<p class="error"><?php echo $errmsg ?></p>
		<?php }
		echo '<input name="blog_title" type="text" id="blog_title" value="'.wp_specialchars($blog_title, 1).'" /></p>';
		?>

		<p>
			<label for="blog_public_on"><?php _e( 'Privacy:', 'buddypress' ) ?></label>
			<?php _e( 'I would like my blog to be visible to other users with posts listed site wide. Selecting No will still give you access to all sections of the site although your blog and posts will not be available to all users.', 'buddypress' ); ?> 
			<label class="checkbox" for="blog_public_on">
				<input type="radio" id="blog_public_on" name="blog_public" value="1" <?php if( !isset( $_POST['blog_public'] ) || '1' == $_POST['blog_public'] ) { ?>checked="checked"<?php } ?> />
				 &nbsp;<?php _e( 'Yes', 'buddypress' ); ?>
			</label>
			<label class="checkbox" for="blog_public_off">
				<input type="radio" id="blog_public_off" name="blog_public" value="0" <?php if( isset( $_POST['blog_public'] ) && '0' == $_POST['blog_public'] ) { ?>checked="checked"<?php } ?> />
				 &nbsp;<?php _e( 'No', 'buddypress' ); ?>
			</label>
		</p>
	</div>
	<?php
	do_action('signup_blogform', $errors);
}

function bp_core_signup_validate_blog_form() {
	$user = '';
	if ( is_user_logged_in() )
		$user = wp_get_current_user();

	return wpmu_validate_blog_signup($_POST['blogname'], $_POST['blog_title'], $user);
}

function bp_core_signup_show_user_form($user_name = '', $user_email = '', $errors = '') {
	// User name
	echo '<div id="account-fields">';
	echo '<label for="user_name">' . __( 'Username:', 'buddypress' ) . '</label>';
	if ( $errmsg = $errors->get_error_message('user_name') ) {
		echo '<p class="error">'.$errmsg.'</p>';
	}
	echo '<input name="user_name" type="text" id="user_name" value="'.$user_name.'" maxlength="50" />';
	echo '<p class="help-text">';
	_e( '(Must be at least 4 characters, letters and numbers only.)', 'buddypress' );
	echo '</p>'
	?>

	<label for="user_email"><?php _e( 'Email&nbsp;Address:', 'buddypress' ) ?></label>
	<?php if ( $errmsg = $errors->get_error_message('user_email') ) { ?>
		<p class="error"><?php echo $errmsg ?></p>
	<?php } ?>		
	<input name="user_email" type="text" id="user_email" value="<?php  echo wp_specialchars($user_email, 1) ?>" maxlength="200" /><p class="help-text"><?php _e( '(We&#8217;ll send your password to this address, so <strong>triple-check it</strong>.)', 'buddypress' ) ?></p>
	<?php
	if ( $errmsg = $errors->get_error_message('generic') ) {
		echo '<p class="error">'.$errmsg.'</p>';
	}
	echo '</div>';
	
	echo '<div id="extra-fields">';
	do_action( 'signup_extra_fields', $errors );
	echo '</div>';
}

function bp_core_signup_validate_user_form() {
	return wpmu_validate_user_signup($_POST['user_name'], $_POST['user_email']);
}

function bp_core_signup_signup_another_blog($blogname = '', $blog_title = '', $errors = '') {
	global $current_user, $current_site;
	
	if ( ! is_wp_error($errors) ) {
		$errors = new WP_Error();
	}

	// allow definition of default variables
	$filtered_results = apply_filters('signup_another_blog_init', array('blogname' => $blogname, 'blog_title' => $blog_title, 'errors' => $errors ));
	$blogname = $filtered_results['blogname'];
	$blog_title = $filtered_results['blog_title'];
	$errors = $filtered_results['errors'];

	?>
	<h3><?php _e( "You're already registered!", 'buddypress' )?></h3>
	<p><?php _e( 'You can still create another blog however. Fill in the form below to add another blog to your account.', 'buddypress' ) ?>
	 

	<p><?php _e( "There is no limit to the number of blogs you can have, so create to your heart's content, but blog responsibly. If you&#8217;re not going to use a great blog domain, leave it for a new user. Now have at it!", 'buddypress' ) ?></p>
	
	<form id="setupform" method="post" action="<?php echo site_url(REGISTER_SLUG) ?>">
		<input type="hidden" name="stage" value="gimmeanotherblog" />
		<?php do_action( "signup_hidden_fields" ); ?>
		<?php bp_core_signup_show_blog_form($blogname, $blog_title, $errors); ?>
		<p>
			<input id="submit" type="submit" name="submit" class="submit" value="<?php _e('Create Blog &raquo;') ?>"/>
		</p>
	</form>
	<?php
}

function bp_core_signup_validate_another_blog_signup() {
	global $wpdb, $current_user, $blogname, $blog_title, $errors, $domain, $path;
	$current_user = wp_get_current_user();
	if( !is_user_logged_in() )
		die();

	$result = bp_core_signup_validate_blog_form();
	extract($result);

	if ( $errors->get_error_code() ) {
		bp_core_signup_signup_another_blog($blogname, $blog_title, $errors);
		return false;
	}

	$public = (int) $_POST['blog_public'];
	$meta = apply_filters('signup_create_blog_meta', array ('lang_id' => 1, 'public' => $public)); // depreciated
	$meta = apply_filters( "add_signup_meta", $meta );

	wpmu_create_blog( $domain, $path, $blog_title, $current_user->id, $meta, $wpdb->siteid );
	bp_core_signup_confirm_another_blog_signup($domain, $path, $blog_title, $current_user->user_login, $current_user->user_email, $meta);
	return true;
}

function bp_core_signup_confirm_another_blog_signup($domain, $path, $blog_title, $user_name, $user_email = '', $meta = '') {
	?>
	<h2><?php printf( __( 'The blog %s is yours.', 'buddypress' ), "<a href='http://{$domain}{$path}'>{$blog_title}</a>" ) ?></h2>
	<p>
		<?php printf( __( '<a href="http://%1$s">http://%2$s</a> is your new blog.  <a href="%3$s">Login</a> as "%4$s" using your existing password.', 'buddypress' ), $domain.$path, $domain.$path, "http://" . $domain.$path . "/wp-login.php", $user_name) ?>
	</p>
	<?php
	do_action('signup_finished');
}

function bp_core_signup_signup_user($user_name = '', $user_email = '', $errors = '') {
	global $current_site, $active_signup;

	$active_signup = get_site_option( 'registration' );

	if ( !is_wp_error($errors) )
		$errors = new WP_Error();
	if( isset( $_POST[ 'signup_for' ] ) ) {
		$signup[ wp_specialchars( $_POST[ 'signup_for' ] ) ] = 'checked="checked"';
	} else {
		$signup[ 'blog' ] = 'checked="checked"';
	}

	// allow definition of default variables
	$filtered_results = apply_filters('signup_user_init', array('user_name' => $user_name, 'user_email' => $user_email, 'errors' => $errors ));
	$user_name = $filtered_results['user_name'];
	$user_email = $filtered_results['user_email'];
	$errors = $filtered_results['errors'];

	?>
	
	<form id="setupform" method="post" action="<?php echo site_url(REGISTER_SLUG) ?>">
		<p id="intro-text"><?php _e( 'Registering for a new account is easy, just fill in the form below and you\'ll be a new member in no time at all.', 'buddypress' ) ?></p>
		<input type="hidden" name="stage" value="validate-user-signup" />
		<?php do_action( "signup_hidden_fields" ); ?>
		
		<?php bp_core_signup_show_user_form($user_name, $user_email, $errors); ?>
		
		<?php if( 'blog' == $active_signup ) { ?>
			<input id="signupblog" type="hidden" name="signup_for" value="blog" />
		<?php } elseif( 'user' == $active_signup ) { ?>
			<input id="signupblog" type="hidden" name="signup_for" value="user" />
		<?php } else { ?>
			<div id="blog-or-username">
				<h3><?php _e( 'Create a Blog?', 'buddypress' ) ?></h3>
				<p id="blog-help-text"><?php _e( 'If you want to create your first blog, select the option below and you\'ll be asked for a few more details.', 'buddypress' ) ?></p>
				
				<div id="blog-or-username-fields">
					<p>
						<input id="signupblog" type="radio" name="signup_for" value="blog" <?php echo $signup['blog'] ?> />
						<label class="checkbox" for="signupblog"><?php _e( 'Gimme a blog!', 'buddypress' ) ?></label>			
					</p>
				
					<p>
						<input id="signupuser" type="radio" name="signup_for" value="user" <?php echo $signup['user'] ?> />			
						<label class="checkbox" for="signupuser"><?php _e( 'Just a username, please.', 'buddypress' ) ?></label>
					</p>
				</div>
			</div>
		<?php } ?>

		<input id="submit" type="submit" name="submit" class="submit" value="<?php _e('Next &raquo;') ?>"/>
	</form>
	<?php
}

function bp_core_signup_validate_user_signup() {
	$result = bp_core_signup_validate_user_form();
	extract($result);

	if ( $errors->get_error_code() ) {
		bp_core_signup_signup_user($user_name, $user_email, $errors);
		return false;
	}

	if ( 'blog' == $_POST['signup_for'] ) {
		bp_core_signup_signup_blog($user_name, $user_email);
		return false;
	}

	wpmu_signup_user($user_name, $user_email, apply_filters( "add_signup_meta", array() ) );

	bp_core_signup_confirm_user_signup($user_name, $user_email);
	return true;
}

function bp_core_signup_confirm_user_signup($user_name, $user_email) {
	?>
	<h3><?php _e( 'Congratulations, you are now registered!', 'buddypress' ) ?></h3>
	<p><?php printf(__('Your new username is: %s', 'buddypress' ), $user_name) ?></p>
	<p>&nbsp;</p>
	<p><?php printf(__('Before you can start using your new username, <strong>you must activate it</strong>. Check your inbox at <strong>%1$s</strong> and click the link given.', 'buddypress' ),  $user_email) ?></p>
	<p><?php _e('If you do not activate your username within two days, you will have to sign up again.', 'buddypress' ); ?></p>
	<?php
	do_action('signup_finished');
}

function bp_core_signup_signup_blog($user_name = '', $user_email = '', $blogname = '', $blog_title = '', $errors = '') {
	if ( !is_wp_error($errors) )
		$errors = new WP_Error();

	// allow definition of default variables
	$filtered_results = apply_filters('signup_blog_init', array('user_name' => $user_name, 'user_email' => $user_email, 'blogname' => $blogname, 'blog_title' => $blog_title, 'errors' => $errors ));
	$user_name = $filtered_results['user_name'];
	$user_email = $filtered_results['user_email'];
	$blogname = $filtered_results['blogname'];
	$blog_title = $filtered_results['blog_title'];
	$errors = $filtered_results['errors'];

	if ( empty($blogname) )
		$blogname = $user_name;
	?>
	<form id="setupform" method="post" action="<?php echo site_url(REGISTER_SLUG) ?>">
		<input type="hidden" name="stage" value="validate-blog-signup" />
		<input type="hidden" name="user_name" value="<?php echo $user_name ?>" />
		<input type="hidden" name="user_email" value="<?php echo $user_email ?>" />
		<?php do_action( "signup_hidden_fields" ); ?>
		<?php bp_core_signup_show_blog_form($blogname, $blog_title, $errors); ?>
		<p>
			<input id="submit" type="submit" name="submit" class="submit" value="<?php _e('Signup &raquo;') ?>"/></p>
	</form>
	<?php
}

function bp_core_signup_validate_blog_signup() {
	// Re-validate user info.
	$result = wpmu_validate_user_signup($_POST['user_name'], $_POST['user_email']);
	extract($result);

	if ( $errors->get_error_code() ) {
		bp_core_signup_signup_user($user_name, $user_email, $errors);
		return false;
	}

	$result = wpmu_validate_blog_signup($_POST['blogname'], $_POST['blog_title']);
	extract($result);

	if ( $errors->get_error_code() ) {
		bp_core_signup_signup_blog($user_name, $user_email, $blogname, $blog_title, $errors);
		return false;
	}

	$public = (int) $_POST['blog_public'];
	$meta = array ('lang_id' => 1, 'public' => $public);
	$meta = apply_filters( "add_signup_meta", $meta );

	wpmu_signup_blog($domain, $path, $blog_title, $user_name, $user_email, $meta);
	bp_core_signup_confirm_blog_signup($domain, $path, $blog_title, $user_name, $user_email, $meta);
	return true;
}

function bp_core_signup_confirm_blog_signup($domain, $path, $blog_title, $user_name = '', $user_email = '', $meta) {
	?>
	<h3><?php _e('Congratulations, You are now registered!', 'buddypress' ) ?></h3>
	
	<p><?php printf( __('But, before you can start using your blog, <strong>you must activate it</strong>. Check your inbox at <strong>%s</strong> and click the link given. It should arrive within 30 minutes.', 'buddypress' ),  $user_email) ?></p>
	<p>&nbsp;</p>
	
	<h3><?php _e('Still waiting for your email?'); ?></h3>
	<p>
		<?php _e("If you haven't received your email yet, there are a number of things you can do:") ?>
		<ul>
			<li><p><strong><?php _e('Wait a little longer.  Sometimes delivery of email can be delayed by processes outside of our control.', 'buddypress' ) ?></strong></p></li>
			<li><p><?php _e('Check the junk email or spam folder of your email client.  Sometime emails wind up there by mistake.', 'buddypress' ) ?></p></li>
			<li><?php printf(__("Have you entered your email correctly?  We think it's %s but if you've entered it incorrectly, you won't receive it.", 'buddypress' ), $user_email) ?></li>
		</ul>
	</p>
	<?php
	do_action('signup_finished');
}

function bp_core_signup_do_signup() {
	// Main
	$active_signup = get_site_option( 'registration' );
	if( !$active_signup )
		$active_signup = 'all';

	$active_signup = apply_filters( 'wpmu_active_signup', $active_signup ); // return "all", "none", "blog" or "user"

	if( is_site_admin() )
		echo '<div class="mu_alert">' . sprintf( __( "Greetings Site Administrator! You are currently allowing '%s' registrations. To change or disable registration go to your <a href='wp-admin/wpmu-options.php'>Options page</a>.", 'buddypress' ), $active_signup ) . '</div>';

	$newblogname = isset($_GET['new']) ? strtolower(preg_replace('/^-|-$|[^-a-zA-Z0-9]/', '', $_GET['new'])) : null;

	$current_user = wp_get_current_user();
	if( $active_signup == "none" ) {
		_e( "Registration has been disabled.", 'buddypress' );
	} elseif( $active_signup == 'blog' && !is_user_logged_in() ){
		if( is_ssl() ) {
			$proto = 'https://';
		} else {
			$proto = 'http://';
		}
		$login_url = site_url( 'wp-login.php?redirect_to=' . site_url(REGISTER_SLUG) );
		echo sprintf( __( "You must first <a href=\"%s\">login</a>, and then you can create a new blog.", 'buddypress' ), $login_url );
	} else {
		switch ($_POST['stage']) {
			case 'validate-user-signup' :
				if( $active_signup == 'all' || $_POST[ 'signup_for' ] == 'blog' && $active_signup == 'blog' || $_POST[ 'signup_for' ] == 'user' && $active_signup == 'user' )
					bp_core_signup_validate_user_signup();
				else
					_e( "User registration has been disabled.", 'buddypress' );
			break;
			case 'validate-blog-signup':
				if( $active_signup == 'all' || $active_signup == 'blog' )
					bp_core_signup_validate_blog_signup();
				else
					_e( "Blog registration has been disabled.", 'buddypress' );
				break;
			case 'gimmeanotherblog':
				bp_core_signup_validate_another_blog_signup();
				break;
			default :
				$user_email = $_POST[ 'user_email' ];
				do_action( "preprocess_signup_form" ); // populate the form from invites, elsewhere?
				if ( is_user_logged_in() && ( $active_signup == 'all' || $active_signup == 'blog' ) ) {
					bp_core_signup_signup_another_blog($newblogname);
				} elseif( is_user_logged_in() == false && ( $active_signup == 'all' || $active_signup == 'user' ) ) {
					bp_core_signup_signup_user( $newblogname, $user_email );
				} elseif( is_user_logged_in() == false && ( $active_signup == 'blog' ) ) {
					_e( "I'm sorry. We're not accepting new registrations at this time.", 'buddypress' );
				} else {
					_e( "You're logged in already. No need to register again!", 'buddypress' );
				}
				if ($newblogname) {
					if( constant( "VHOST" ) == 'no' )
						$newblog = 'http://' . $current_site->domain . $current_site->path . $newblogname . '/';
					else
						$newblog = 'http://' . $newblogname . '.' . $current_site->domain . $current_site->path;
					if ($active_signup == 'blog' || $active_signup == 'all')
						printf( __( "<p><em>The blog you were looking for, <strong>%s</strong> doesn't exist but you can create it now!</em></p>", 'buddypress' ), $newblog );
					else
						printf( __( "<p><em>The blog you were looking for, <strong>%s</strong> doesn't exist.</em></p>", 'buddypress' ), $newblog );
				}
				break;
		}
	}
}
